"Do not face towards the Qiblah nor turn your backs toward it when defecating or urinating, rather face toward the east or the west."  

أَنَّ النَّبِيَّ ﷺ قَالَ لاَ تَسْتَقْبِلُوا الْقِبْلَةَ وَلاَ تَسْتَدْبِرُوهَا لِغَائِطٍ أَوْ بَوْلٍ وَلَكِنْ شَرِّقُوا أَوْ غَرِّبُوا